Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Katherine Ann Mass, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1437787801

Dr. Katherine Ann Mass, MD is an Obstetrics/Gynecology in Virginia, Minnesota. Qualified in 2020, 6 years ago. Practices with Lutheran Hospital Association of the San Luis Valley, a 150-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
6
Licensed in
MN
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1101 9th St N
Virginia, MN 55792-2329
Phone: (218) 305-0000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 82368 (MN)

Record details

NPI number1437787801
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2020
Last updated in NPPESApril 23, 2026
Certification dateApril 23, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Lutheran Hospital Association Of The San Luis Valley — 150 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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